New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/29068#issuecomment-787116732

Comment:
@FollieHiyuki you can just binary bootstrap for a different arch `./xbps-src -m masterdir-glibc binary-bootstrap x86_64`

That said, cross builds from musl to glibc should be working now.